There is a "hole" inside, measured to some Neodymium magnets I had.
Make sure to check if the hole will fit, and also judge the right moment to pause your print. I've use a dab of super glue to make sure it stays fit (metal fan shroud + magnet -> ruined print).
Also, check if the magnet is strong enough - maybe you have to lower the hole a bit.
If the hole doesn't fit, I've set the Tinkercad file to public:
| Cat_Magnet.stl | 999.0KB |
